MD5 Neighbor Authentication in Extended Interior Gateway Routing Protocol (EIGRP) 1.2, as implemented in Cisco IOS 11.3 and later, does not include the Message Authentication Code (MAC) in the checksum, which allows remote attackers to sniff message hashes and (1) replay EIGRP HELLO messages or (2) cause a denial of service by sending a large number of spoofed EIGRP neighbor announcements, which results in an ARP storm on the local network.
Metrics
Affected Vendors & Products
References
History
No history.
MITRE
Status: PUBLISHED
Assigner: mitre
Published: 2005-12-21T01:00:00
Updated: 2024-08-07T23:46:04.565Z
Reserved: 2005-12-21T00:00:00
Link: CVE-2005-4437
Vulnrichment
No data.
NVD
Status : Modified
Published: 2005-12-21T01:03:00.000
Modified: 2024-11-21T00:04:15.593
Link: CVE-2005-4437
Redhat
No data.